Pass through pcie card disconnects Proxmox

I have a problem that I can not fix by myself.

I had created VM (type- q35, network interface- e1000,bridge=vmbr0). I had activated intel_iommu/ vfio, vfio_iommu_type1, vfio_pci, vfio_virqfd, updated grub etc. so there was no problems with devices.
Everything works ok with VM but when I want to add pcie sas controller to it I am loosing connection to proxmox. I am using sas controller in IT mode in one slot and pcie DELL INTEL PRO 1000VT quad port NIC in second slot (internal ethernet card...

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